Klettgau is a municipality in the district of Waldshut in Baden-Württemberg, Germany. It is the center of the Klettgau historical region stretching across the Swiss border into the cantons of Aargau, Schaffhausen, and Zürich. From Wikipedia
North Rhine-Westphalia and Baden-Württemberg rail networks report slight gains in reliability, but infrastructure and staffing deficits continue to hinder service quality.
